Global Navigation Satellite Systems Engineering, Policy, and Design
The advent of large LEO constellations is a game-changer for navigation. A key feature of these constellations is their potential to allow simultaneous measurement of Doppler shifts from a large number of satellites.
The SiriusXM satellite radio network now broadcasts GNSS corrections from Trimble’s RTX service. New cars sold in the contiguous U.S. and Canada equipped with SiriusXM’s Gen8 satellite chipset will be able to receive RTX GNSS corrections, without the need to access a cellular network, thus enabling high-accuracy positioning, a key component of autonomous on-road applications.
By Inside GNSS
Alstom, a French rail rolling stock manufacturer, has integrated certified data fusion algorithms for fail-safe train localization, using position and speed of trains based on GNSS data coming from multiple constellations including Galileo.
By Inside GNSS
A framework to seamlessly navigate people from urban road traffic to indoor foot traffic uses the phone’s inertial measurement unit, GNSS chipset and camera, aided by an extended Kalman filter and ORB-SLAM. Tests show the framework performing well in both phases, guiding the phone’s user, behind the wheel on a city street, to a spot in an underground parking garage and walking to a meeting inside a large building.
Ten companies active in positioning, navigation, and timing (PNT) have formed the Open PNT Industry Alliance. The coalition seeks to fortify economic and national security by supporting government efforts to accelerate the implementation of backup PNT capabilities for critical infrastructure.
By Inside GNSS
Japan’s new Centimeter Level Augmentation Service (CLAS) now broadcasts a signal for nationwide open PPP-RTK service in Japan, providing centimeter positioning accuracy in a minute.
By Inside GNSS
The European GNSS Agency (GSA) has started testing the Open Service Navigation Message Authentication (OSNMA) feature in the Galileo signals.
By Inside GNSS
Huber+Suhner, a global supplier of optical and electricity connectivity solutions, updated its range of SENCITY Rail antennas to receive signals from all four GNSS: BeiDou, Galileo, GPS and GLONASS.
By Inside GNSS
Swift Navigation announced that its precise positioning platform can improve the performance of existing single-frequency GNSS positioning, found on most production vehicles today, from the standard average of 3 meters to lane-level accuracy without changing existing hardware and antenna.
By Inside GNSS
Raytheon Missiles & Defense announced that its StormBreaker smart weapon has been approved for use on the F-15E by the U.S. Air Force’s Air Combat Command. StormBreaker’s multimode seeker guides the weapon by imaging infrared, millimeter wave radar, and semi-active laser in addition to or with GPS and inertial navigation system guidance.
By Inside GNSS
u-blox announced that it supplied the high-accuracy technology that made it possible to fly the world’s largest swarm of drones. The record-breaking simultaneous flight of 2198 miniature UAVs was launched into the night sky over Saint Petersburg, Russia, on September 3.
By Inside GNSS
Spirent Federal Systems announced that it has been selected by the U.S. National Aeronautics and Space Administration (NASA) for testing GNSS for lunar exploration.
By Inside GNSS
The latest release from Hexagon promises precise point positioning (PPP) convergence in less than a minute for centimeter-level accuracy on land, air and marine applications around the world.
By Inside GNSS
